PDF malware analysis — malicious · bd0e3e27e7faa768

MALICIOUS

PDF

68.0 KB Created: 2020-11-17 22:21:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9edcf945c1c0ce0ebb483fa6da5945d8 SHA-1: 12db59edabcf7a25cbafb36840e378517c79b67a SHA-256: bd0e3e27e7faa76809e99e9726789427997e283f07ae03e81e7d82d976828079

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, trafftec.ru, which is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest an attempt to redirect the user to a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://trafftec.ru/123?utm_term=gordon+waller+singer
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/d3368da0-5983-4b85-a144-03bd62ac1529/47315072986.pdf
- https://s3.amazonaws.com/bakoloj/1997_ashrae_fundamentals_handbook.pdf
- https://uploads.strikinglycdn.com/files/e377d76a-856c-48e4-984b-22e70a93bdf1/xibuvonedom.pdf
- https://uploads.strikinglycdn.com/files/09ddc5c4-d3a1-4df5-bb93-c1a60da760e4/67589125585.pdf
- https://uploads.strikinglycdn.com/files/7773971a-d7e6-4426-beb2-75ef5dd0d5ec/wolozevetudetotopupasug.pdf
- https://uploads.strikinglycdn.com/files/9840d643-269c-441b-a0ed-784bbbac015e/pivurazewa.pdf
- https://uploads.strikinglycdn.com/files/685ec863-a00b-4b96-b62a-2bc4c248579c/ver_serie_la_ley_y_el_orden.pdf
- https://s3.amazonaws.com/poresi/figusivojeve.pdf
- https://s3.amazonaws.com/xipavir/causas_de_carcinomatosis_peritoneal.pdf
- https://s3.amazonaws.com/jusuberu/25533510069.pdf
- https://s3.amazonaws.com/felasorarabipis/technical_interview_questions_for_electrical_engineering.pdf
- https://uploads.strikinglycdn.com/files/f2d25233-f7d2-4ad3-bb76-da97ed8cdfab/96702159314.pdf
- https://s3.amazonaws.com/bitajemisajoz/snapchat_download_apk_apps.pdf
- https://s3.amazonaws.com/mijedusovineti/aparato_reproductor_femenino_organos_externos.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ce28.bin` `9c379e777ca1d5dc3a013809192030b4b20f19d9e550d3586226bc1b20c22bfd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCE28	5116 bytes
`font_01_sfnt_off0000dfb0.bin` `eec90bffc7a9067bd57232d9eac69c4394b02f283ad4d6df4c90309d2a65f002`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDFB0	10336 bytes

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